Automatic sealing machine



FIG. 1 is a left front perspective view of an automatic sealing machine embodying my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a side elevation view taken from the left of FIG. 1;

FIG. 5 is a side elevation view taken from the right of FIG. 1;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof. 

The ornamental design for an automatic sealing machine, as shown and described. 